Operating device for use in connection with coke-oven doors



Nov. 16, 1937. c. c. MIDDLETON Er Al.

OPERATING DEVICE FOR USE IN CONNECTIONYWITH COKE OVEN DooRs Filed Aug. 17, 1936 5 Sheets-SheetI l Fig.. 1.

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Nov. 16, 1937. c. c. MlDDLEToN Er Al. 2,099,271

OPERATING DEVICE FOR USE IN CONNECTION WITH COKE OVEN DOORS 5 Sheets-Sheet 2 Filed Aug. 11, 1936 Fig. 2.

c. c. MIDDLETON ET A1. 2,099,271 OPERATING DEVICE FOR USE IN CONNECTION WITH COKE OVEN DOORS Nov. 16, v1937.

Filed Aug. 17, 1956 3 SheeS-Slleetv 3 Patented Nov.' 16, 1937 l Y 2,699,271 i -oPTG -pEvIo Forti U'sE iN CONNEC- TIONYWITH COKE-"OVEN Doons l cnaiisj ein@ jajaonj. een L Krall, London,T England, assgnors to 'YVoodall-l Y Av(195510)Liinited, London, England," af

Y Application Augsf. 1v, meer.'serial` lvfsensi' In Great'. Britain October 4, 1935k i securingfthedoor in placeiis generally provided on self-sealing` doors',V whichusually have .two such screws, one. near the bottomof Athe door, and the ,other near the'top; o'n account of the heightof the door, the top screw is, frequently :f about '12;feetabove 4thelevel of the bench.

Amcglge-ovendoor already been, lproposedi 25 1n-whidchtlie top and bottom screws' of each door alie lfnlelepnneeied. by mechanismwherebv beth screwsclan be tightened,simultaneously fromthe bench level, but this arrangement ,necessitates f i the DIQi/,sliolivof Kspecial mechanism on each jdoor.

30 The present invention obviatesV thenecessity for theaboye, orwanalogousrdevices. iflcorlirig to theipresent invention, We provide an arrangement. for .turning the. top screws of colgo-oven doors from bench leveL-,in which a 35 devieeycornprislng a ySpannerlreadfor engaging. ille .erenheads suspended; at about the lever Of; @he i012 falcews.;andjlnterconneted with op elallnejnealls .bench level ...fon turningV :the -sllanne.r liaadiis movably mounted en -a railnr 4 runway extending alone :the oven battery',l where.-

by theV device may be moved from one door to L 'spannen-head'l issuspended by a vflexible suspens sion, such) as a chain,l from a carriage movable alongQa rail at the Itop ofvthe oven;- battery, :and the suspension is arranged to permit a -smallfvera tical'movement'of the spanner-headfto.v engage 56 individual screvvs, thexheight of which .j may vary; slightly from .door todoor. Preferablyi also, the Spanner-head incorporates ratchet mechanism", asheeafter described, operated through a longhandleextending" down t. to .a convenient h'ei'ght abovef'the-.benchfso that; v the spannerhead can l lit is the conventionalapractice tqtightenjandy loosen thetop screw bymeans of a,1heavy long-r vainas.: (creas-emi; i Y

be rotated, as in known Vratchet spanners,by, the toandfro.motionV of thehandle by the, opgeratoigV The lower sorewsonthe doors. are turnediwith a short Spanner, Afrom benchY level, [as Vheretoore., The.; invention 'is more particularly .described 5 Y with reference to the accompanyingdravvings,in

Fieureslgshowsla front. elevation ofatrai/elhng. Spanner,` according .to the present inventiomin rel ation...tok .a battery nienke-ovens; 1o

Figure 2 is a side elevation, partly in section, Corresponding@ Figure 1;, Y .Flgures Sand 4 show, on anenlareedseale, the.

detailsgoi Spanner-liead,l Figure Sabeinsvasecr tion on the line A-A of Figure 4, and,fligure"4 15] a seeiionnn the line.B B ai llialne-3; and 4liigure5:illustrates a simpliiedlio'rm of the spannen; L Refelrineite Figures 1, 2, 3,. and 4, wlnlenl lusirateour. preferred form-.QL the invention.; fa Eisure 1. Vslwvvs. nart @f a batteryi .eolieavensa.V 2 the oven doors 6 being held ingpositionagainstl the oven mouthY by the'pressure .Q alillrevvs 1 anula .bearing .against Varms '8. which. .engage with latches. 8. atiaehedtotne st eelworkoime Oven.

Inaeeordance Withgithe presentinventionuine 25 ien serein-heads 1 arenow iurnedby. tnepspanz nerzllead l0.. actuated as hereafter described inruilen. the lone. lianelle- Whiel 1 is shown cle-y nengline le .a suitable level above the benennt i. 'ine snanner suspended by a. chainlf from Yone. 3 end Qi. thearnl il the Qinerendnf which carriesa eeulnierweielli. I 2 @see Figure 2),. Ine ann I I. lspivoted about a pllorlzontal axis. en a. carriage lf3 ,`running onarail I4 Aalong the top of ,the Oven baiiery- As stated abeve, .the Spannerhead lszturned.; tnrouenzraianet rneehanis1n, se avoininenlie ne- Cessitrfienrernovlne the. Spannenand renlaeinaii. 0n atn e serew -headbetWeen eael.v iurn ,lhef rainnet mechanism i alunni.Y lndetall, ln Figures. 40 3. end -fl- .f .lhe Spannernaad l5 @arnese rathei. neriien 6, and can? rotaie ln ille `sunn0rt .l.l

s ailianlled. '96 ille allein? Yby a swivelline. link. 1 8.- "line handle el? lne snauinelv isfaiiaened. 5e

i0 einher l 9, which lspalse ieunlalfee.l in the p Iflland. Willen carnes.y the ynavvl. 2 it. Y is .9lea. than nievelnenif. ille llanlile-,franinentf t0 left 0n lieuref `will; iperaize te serewun iene; screw, Y the. reiurn .sir0ke slipping, the rate et-g 5-0: Wheniil. iszrenuiled in unsrew afserew, the spa now. unsnrevrthe serewreplaced by worm gearing, which is operated from bench level by an endless chain. Y

It will be seen from Figure 2 that the action of pulling down the Spanner to engage it with the screw-head causes the head of the spanner to move inwards towards the screws,'as the arm Il becomes more nearly horizontal.Y By this means, the spanner is easily brought into engagement with the screw-head, and when engaged has no tendency to slip olf during the operation. As already stated, the height of the various screws may vary vslightly from door to door, and the arrangement of Figure 2 permits the requisite x vertical movement of the spanner-head.

Figure 5 illustrates a simplified form of the spanner which may be used in certain circumstances. A long-handled Ordinaryspanneris suspended by a chain anda spring 2 I Vfrom a mbvable carriage I3, arranged as before. The spring` permits a small vertical movement of the spanner head, in order to engage different screws at difierent levels, as in thercase of the arrangement referred torin the preceding paragraph. The chain is sufficiently iiexible toallow the requisite rotational movement of the head of the Spanner. InV this embodiment, the Spanner must be removed from the screw-head and Vreplaced thereon be-' tween each turn, but as the weight ofthe Spanner is now taken by the suspension, the physical exertion on the part of the operator is correspondingly reduced. f Y i Instead of suspending the spanner from a carriage on an overhead rail, it may be suspended or pivoted at the top of a small tower running on wheels along the bench v An important advantageof the present invention is that the spanner is independent of the door-operating machine, and hence the machine, after use on one door, can be moved to another door while the adjustment of the screws on the first door is in progress, operating time being economized thereby.

What we claim is:-- Y 1. In a coke oven having a door held in closed position by upper and lower screws which lie in a common vertical plane parallel to the face ofthe door, the combination of means for releasing the upper screw comprising a support, a wrench carried by said support and suspended therefrom above the upper screw and in laterally spaced relation with reference to the plane of the screws, means for connecting the wrench to the support so that it can be lowered into alignment with thev to'p screw, said connection including means for simultaneously causing the wrench to approach the plane of the screws as it is, lowered, and

means for operating said wrench.

2. In a coke oven having a door held in closed position by upper and lower screws which lie in a common vertical plane parallel to the' face of thedoor, the combination of means for releasing the upper screw comprising a support, a'

wrench carried by said support and suspended above the upper screw and in laterally spaced relation with reference Yto the plane of the screws, means for connecting the wrench to the support so that it can be lowered into alignment with the top screw, said connection including means causing the wrench to simultaneously move to a position above the top screw and away from the plane of the screws whenreleased therefrom, and means for operating said wrench.

3. In a coke oven having a door held in closed position byupper and lower screws which lie in a common vertical plane parallel to the vface ofthe one end of said lever, and a connection between Y the other'end of the lever to the wrench, the

counterweightnormally elevating the wrench to a position Yabove and to one side of the top screw whereby upon lowering of the wrench into alignment with the top screw the wrench simultane- "ously moves toward the plane of the screws, and

means'f or Voperating the wrench.

4'; In a byproduct coke oven having a door held in closed position by upper and lower screws which Y lie in a common vertical plane parallel to the face of the door, the combination of means for releasing the upper vscrew comprising a support, a wrench carried by said supportv and suspended above the upperscrewand in laterally spaced relation with reference to the plane of the screws, means for connecting the wrench to the support so that it canbe lowered Vinto alignment with the top l' screw, said connection including aV spring causing the wrench to simultaneously move -to a position above the top screw and away from the planeY of ,thel screws when released therefrom, and means for operating said wrench.

5. In a battery of coke ovens having doors held in closed position by upper and lower screws lying in a common vertical plane parallel to the faces of the doors, the combinationrof means for releasing the upper screws'comprising a support, a track carried by said support in parallel relation to the faces of the doors and spaced-laterally from the plane of the screws', a carrier movable along said track, a wrench carried by said carrier and suspended. above the upper screws Vand in laterally spaced relation with reference to `the plane of thescrews, means forY connecting the wrench to the support so that it can be lowered into alignment with the top` screw, said connectionV also including -means for simultaneously causing the wrench to approach the plane of the screws as it is lowered, and means for operating said wrench. Y

6. In a battery of coke ovens having doors held in closed position by upper and lower screws which lie in a common vertical plane parallel to the faces of the doors, the combination of means for releasing the upper screws comprising a sup-Y port, a track carried by said support in parallel Yrelation to the faces of the doors, and spaced laterally fr omthe plane of the screws, a carrier movablealong said track, a wrench carried by said carrier and suspended above the upper screws and in laterally spaced relation with reference to the plane of the screws, means for connecting the wrench tothe support sothat itY can be lowered into alignment with the top screw, said connection Vincluding means causing the wrench to simultaneously move to a position above the top screw'and away from the plane ofthe screws when released therefrom, and means for operating said wrench. 'y Y "1. In a cokeV oven having a door held in clsed position by upper and lower screws which lieina common vertical plane parallel to the face of the door, the combination of means for releasing the upper screw comprising a support, a wrench carried byfsaid'support and suspended above the upper screw and in laterally spaced relation with reference to the plane of the screws, means for connecting the wrench to the support so that it can be lowered into alignment with the top screw, said connection including means causing the wrench to simultaneously move to a position above the top screw and away from the plane of the screws when released therefrom, ratchet mechanism combined with said wrench for turn? ing the same, and an operating handle for opernsm.

CHARLES CRAIB MIDDLETON. REGINALD FRANK KRALL.

ating said wrench through said ratchet mecha- 

